Researchers Demonstrate Zombie Card Attack to Reactivate Expired Visa Cards for Contactless Payments

Researchers at the University of Massachusetts Amherst have uncovered a significant security vulnerability in Visa contactless credit cards, demonstrating a method to revive expired cards for real-world purchases by manipulating the expiration date read by point-of-sale (POS) terminals. This “Zombie Card” attack, as it’s been dubbed, bypasses cryptographic protections, raising concerns about the…